F 62 Five-membered 2,3-dioxo heterocycles: CI. Reaction of 3-aroylpyrrolo[2,1-c] [1,4]benzoxazine-1,2,4-triones with arylhydrazines. Crystal and molecular structure of substituted 2-hydrazonopyrrolo[2,1-c][1,4]benzoxazine [Electronic resource] / I. V. Mashevskaya, N. V. Suchkova, L. V. Kusina, P. A. Slepukhin, A. N. Maslivets // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2014. - Vol.50, №3. - С. 425-428. - Bibliogr. : p. 428 (6 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): NUCLEOPHILIC ATTACK -- HETEROCYCLES -- 1,2,4-TRIONES Аннотация: A new direction of nucleophilic attack was revealed in the reactions of 3-aroylpyrrolo[2,1-c][1,4]-benzoxazine-1,2,4-triones with o-tolylhydrazine and 2-hydrazinylbenzoic acid hydrochloride, which afforded the corresponding hydrazones at the C2=O carbonyl group, substituted 2-(2-o-tolylhydrazono)pyrrolo[2,1-c]-[1,4]benzoxazine-1,4(2H)-diones and pyrrolo[2,1-c][1,4]benzoxazin-2(4H)-ylidenehydrazinylbenzoic acids. The structure of (Z)-2-{2-[3-benzoyl-1,4-dioxo-1H-pyrrolo[2,1-c][1,4]benzoxazin- 2(4H)-ylidene]hydrazinyl}-benzoic acid was determined by X-ray analysis \\\\expert2\\nbo\\Russian Journal of Organic Chemistry\\2014, 50, (3), 425-428.pdf |